...
The above features are in addition to the DSpace 7 features
the e-mail subscription feature that alerts users of new items being deposited;
the 'media filter' tool, that generates thumbnails of images and extracts the full-text of documents for indexing;
the 'checksum checker' that tests the bitstreams in your repository for corruption;
the curation system queueing feature, which allows administrators to "queue" tasks (to run at a later time) from the Admin UI;
and the registration of DOIs using DataCite as registration agency.
that require periodic execution via CRONTAB, please be sure to review also the DSpace 7 dedicated documentation page page Scheduled Tasks via Cron